p{color: red; border: thick solid groove;}
h1{color: green; border: 1px;}

body{
    background-color: rgb(212, 115, 36);
}
img:hover{
    background-color: #00F;
}
.img{
    margin: 2px;
    padding: 1px;
    height: 80px;
    width: 100px;
    border: thin solid #0FF;
}
#layout{
    margin: 10px auto;
    padding: 1px;
    width: 880px;
}
.au{
    width: 955px;
}
.ad{
    width: 955px;
    height: 80px;
    margin: 0 auto;
}
@media screen and (max-width:1200px) { 
    #layout{
        margin: 0px auto;
        width:100%;
        height: 900px;
    }
    .au{
        width: 100%;
    }
    .ad{
        width: 100%;
        height: 80px;
        margin: 0 auto;
    } 
    .img{
        margin: 2px;
        padding: 1px;
        height: 50px;
        width: 10%;
        border: thin solid #0FF;
    }
} 
button {
    width: 90%;
    line-height: 38px;
    text-align: center;
    font-weight: bold;
    color: black;
    text-shadow: 1px 1px 1px #333;
    border-radius: 5px;
    margin: 0 10px 10px 0;
    position: relative;
    overflow: hidden;
    background-color: rgb(252, 99, 5);
}